JP6472086B2 - 対象の呼吸情報を取得する装置 - Google Patents
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Description
‐対象の複数Nの画像フレームに対して少なくとも関心領域の複数の画素及び/又は画素のグループに対して複数Mの運動信号を計算する運動信号計算ユニットと、
‐一部又は全ての運動信号に対して、前記画像フレーム内の独立した運動を表すソース信号を得るようにそれぞれの前記運動信号に変換を適用することにより前記画像内の独立した運動を表す複数のソース信号を計算する変換ユニットと、
‐前記計算されたソース信号の一部又は全てに対して前記ソース信号の1以上の特性を検査することにより前記計算されたソース信号の中から前記対象の呼吸を表すソース信号を選択する選択ユニットと、
を有する。
Claims (14)
- 対象の呼吸情報を取得する装置において、
対象の複数Nの画像フレームにわたる各画像フレームの少なくとも関心領域内の複数Mの点及び/又は領域の運動をそれぞれ表す複数Mの運動信号を計算する運動信号計算ユニットと、
一部又は全てのMの運動信号に対して、前記Nの画像フレーム内の独立した運動を表すソース信号を取得するようにそれぞれの前記運動信号に対して変換を適用することにより前記画像内の独立した運動を表す複数のソース信号を計算する変換ユニットと、
前記計算されたソース信号の一部又は全てに対して前記ソース信号の1以上の特性を検査することにより前記対象の呼吸を表すソース信号を前記計算されたソース信号の中から選択する選択ユニットと、
を有し、
前記運動信号計算ユニットが、少なくとも前記関心領域内の複数の点及び/又は領域に対する複数の運動ベクトルを有する密な又は疎な運動ベクトル場を計算し、前記運動ベクトル場に基づいて、前記Mの運動信号を計算する、
装置。 - 前記変換ユニットが、前記Mの運動信号のうちPの運動信号に対して、前記Nの画像フレーム内で独立した運動を表すQのソース信号を取得するように前記Pの運動信号それぞれに対して変換を適用することにより、前記画像内で独立した運動を表す複数Qのソース信号を計算し、ここで2≦P≦Mかつ2≦Q≦Pである、
請求項1に記載の装置。 - 前記選択ユニットが、前記Qのソース信号の一部又は全てに対して、固有値、分散、周波数、ソース信号の対応する運動信号に対する相関及び空間的相関の少なくとも1つを検査する、
請求項2に記載の装置。 - 前記変換ユニットが、前記Pの運動信号それぞれに対するブラインド信号分離を適用する、
請求項2に記載の装置。 - 前記変換ユニットが、長さNのソース信号及び対応する固有値又は分散を取得するように前記運動信号のそれぞれに対して主成分分析及び/又は独立成分分析を適用することにより前記複数のソース信号を計算する、
請求項1に記載の装置。 - 前記固有値が、対応するソース信号の方向における元のデータの分散を表す、
請求項5に記載の装置。 - 前記選択ユニットが、前記固有値又は分散の使用により前記複数のソース信号の中からソース信号を選択し、前記固有値又は分散に対する最小閾値より大きく、最大閾値より小さい固有値又は分散を持つソース信号を選択する、
請求項3に記載の装置。 - 前記選択ユニットが、前記ソース信号の優位周波数の使用により前記複数のソース信号の中からソース信号を選択し、予測される呼吸速度を含む所定の周波数範囲内の優位周波数成分を持つソース信号が、選択される、
請求項1に記載の装置。 - 前記選択ユニットが、前記ソース信号及び前記運動信号の相関の使用により前記複数のソース信号の中からソース信号を選択し、前記対象の胸部又は腹部領域において運動に対する最高の相関を持つソース信号を選択する、
請求項1に記載の装置。 - 前記選択ユニットが、空間的相関の使用により前記複数のソース信号の中からソース信号を選択し、前記Nの画像フレーム内で最大の空間的に一貫した領域からのソース信号を選択する、
請求項1に記載の装置。 - 前記運動信号計算ユニットが、運動信号のダウンサンプリング、グルーピング、平均化又は非線形結合により前記運動ベクトル場を処理する、
請求項1に記載の装置。 - 対象の呼吸情報を取得するシステムにおいて、
対象の複数Nの画像フレームを取得する撮像ユニットと、
前記対象の前記取得されたNの画像フレームの使用により前記対象の呼吸情報を取得する請求項1乃至11のいずれか一項に記載の装置と、
を有する、システム。 - 対象の呼吸情報を取得する方法において、
対象の複数Nの画像フレームにわたる各画像フレームの少なくとも関心領域内の複数Mの点及び/又は領域の運動をそれぞれ表す複数Mの運動信号を計算するステップと、
一部又は全てのMの運動信号に対して、前記Nの画像フレーム内で独立した運動を表すソース信号を取得するように前記運動信号のそれぞれに対して変換を適用することにより前記画像内で独立した運動を表す複数のソース信号を計算するステップと、
前記計算されたソース信号の一部又は全てに対して前記ソース信号の1以上の特性を検査することにより前記計算されたソース信号の中から前記対象の呼吸を表すソース信号を選択するステップと、
を有し、
前記複数Mの運動信号を計算するステップが、少なくとも前記関心領域内の複数の点及び/又は領域に対する複数の運動ベクトルを有する密な又は疎な運動ベクトル場を計算し、前記運動ベクトル場に基づいて、前記Mの運動信号を計算する、
方法。 - コンピュータ上で実行される場合に、前記コンピュータに、請求項13に記載の方法のステップを実行させるプログラムコード手段を有するコンピュータプログラム。
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US201361765085P | 2013-02-15 | 2013-02-15 | |
EP13155438.8 | 2013-02-15 | ||
US61/765,085 | 2013-02-15 | ||
EP20130155438 EP2767233A1 (en) | 2013-02-15 | 2013-02-15 | Device for obtaining respiratory information of a subject |
PCT/EP2014/052253 WO2014124855A1 (en) | 2013-02-15 | 2014-02-05 | Device for obtaining respiratory information of a subject |
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JP2016506840A JP2016506840A (ja) | 2016-03-07 |
JP2016506840A5 JP2016506840A5 (ja) | 2017-03-02 |
JP6472086B2 true JP6472086B2 (ja) | 2019-02-20 |
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US (1) | US20140236036A1 (ja) |
EP (2) | EP2767233A1 (ja) |
JP (1) | JP6472086B2 (ja) |
CN (1) | CN105072997A (ja) |
BR (1) | BR112015019312A2 (ja) |
RU (1) | RU2663175C2 (ja) |
WO (1) | WO2014124855A1 (ja) |
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JP3275029B2 (ja) * | 1999-08-02 | 2002-04-15 | 独立行政法人産業技術総合研究所 | 画像処理による呼吸波形分析を用いた血中酸素飽和度降下推定法 |
US6942621B2 (en) * | 2002-07-11 | 2005-09-13 | Ge Medical Systems Information Technologies, Inc. | Method and apparatus for detecting weak physiological signals |
US7706866B2 (en) * | 2004-06-24 | 2010-04-27 | Cardiac Pacemakers, Inc. | Automatic orientation determination for ECG measurements using multiple electrodes |
GB2441550A (en) * | 2006-09-05 | 2008-03-12 | Vision Rt Ltd | Surface-imaging breathing monitor |
WO2009148041A1 (ja) * | 2008-06-03 | 2009-12-10 | 株式会社 日立メディコ | 医用画像処理装置及び医用画像処理方法 |
JP5295391B2 (ja) * | 2009-02-12 | 2013-09-18 | ヴィジョン アールティー リミテッド | 患者モニタおよび方法 |
CN102549621B (zh) * | 2009-10-06 | 2016-08-31 | 皇家飞利浦电子股份有限公司 | 用于处理至少包含代表生物中的周期现象的分量的信号的方法和系统 |
WO2011088227A1 (en) * | 2010-01-13 | 2011-07-21 | Regents Of The University Of Minnesota | Imaging epilepsy sources from electrophysiological measurements |
CN102843966B (zh) * | 2010-02-12 | 2016-01-20 | 皇家飞利浦电子股份有限公司 | 用于处理周期性生理信号的方法和装置 |
US20110251493A1 (en) * | 2010-03-22 | 2011-10-13 | Massachusetts Institute Of Technology | Method and system for measurement of physiological parameters |
RU2479253C2 (ru) * | 2011-03-25 | 2013-04-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗГУ) | Устройство для измерения тремора пальцев рук |
WO2012140531A1 (en) | 2011-04-14 | 2012-10-18 | Koninklijke Philips Electronics N.V. | Device and method for extracting information from characteristic signals |
JP5672144B2 (ja) * | 2011-05-20 | 2015-02-18 | 富士通株式会社 | 心拍数・呼吸数検出装置,方法およびプログラム |
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2013
- 2013-02-15 EP EP20130155438 patent/EP2767233A1/en not_active Withdrawn
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2014
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- 2014-02-05 EP EP14702636.3A patent/EP2956062A1/en active Pending
- 2014-02-05 JP JP2015557374A patent/JP6472086B2/ja active Active
- 2014-02-05 CN CN201480008895.1A patent/CN105072997A/zh active Pending
- 2014-02-05 RU RU2015139150A patent/RU2663175C2/ru not_active IP Right Cessation
- 2014-02-05 WO PCT/EP2014/052253 patent/WO2014124855A1/en active Application Filing
- 2014-02-05 BR BR112015019312A patent/BR112015019312A2/pt not_active Application Discontinuation
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EP2767233A1 (en) | 2014-08-20 |
EP2956062A1 (en) | 2015-12-23 |
BR112015019312A2 (pt) | 2017-07-18 |
RU2663175C2 (ru) | 2018-08-01 |
WO2014124855A1 (en) | 2014-08-21 |
RU2015139150A (ru) | 2017-03-21 |
CN105072997A (zh) | 2015-11-18 |
US20140236036A1 (en) | 2014-08-21 |
JP2016506840A (ja) | 2016-03-07 |
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